Table Of Contents
Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.1(5)YB
Determining Your Software Release
Upgrading to a New Software Release
New Hardware Features Supported in Release 12.1(5)YB1
New Software Features in Release 12.1(5)YB1
Quality-of-Service Device Manager
New Software Features in Release 12.1(5)YB
Quality of Service Voice Features for the Cisco 1750 and Cisco 1751 Platforms
Fan Operation in Cisco 1700 Series Routers
Flash Defaults to Flash:1 on Multipartition Flash
Peak Cell Rate and Sustainable Cell Rate Values
Resolved Caveats - Release 12.1(5)YB5
Caveats Resolved in Release 12.1(5)YB4
Caveats for Release 12.1(5)YB3
Resolved Caveats for Release 12.1(5)YB3
Unresolved Caveats for Release 12.1(5)YB3
Caveats for Release 12.1(5)YB1
Cisco IOS Software Documentation Set
Release 12.1 Documentation Set
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for the Cisco 1700 Series Routers for Cisco IOS Release 12.1(5)YB
February 20, 2002
These release notes for the Cisco 1700 series routers describe the enhancements provided in Cisco IOS Release 12.1(5)YB, up to and including Release 12.1(5)YB5. Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.1 located on Cisco.com and the Documentation CD-ROM.
For a list of the software caveats that apply to Cisco IOS Release 12.1(5)YB5, see the "Caveats" section and Caveats for Cisco IOS Release 12.1 T. The caveats document is updated for every maintenance release and is on Cisco.com and the Documentation CD-ROM.
Contents
These release notes discuss the following topics:
•
Obtaining Technical Assistance
System Requirements
This section describes the system requirements for Release 12.1(5)YB5 and includes the following sections:
•
•
Memory Requirements
Table 1 Memory Requirements for the Cisco 1700 Series Routers
IP Feature Sets
IP
c1700-y-mz
4 MB
24 MB
IP ADSL
c1700-y7-mz
8 MB
24 MB
IP Plus ADSL
c1700-sy7-mz
8 MB
32 MB
c1700-sv3y7-mz
16 MB
48 MB
IP Plus IPSec 56 (DES) ADSL
c1700-sy756i-mz
8 MB
32 MB
IP/Voice Plus IPSec 56 (DES) ADSL
c1700-sv3y756i-mz
16 MB
48 MB
IP/Voice Plus
c1700-sv3y-mz
8 MB
32 MB
IP/FW/IDS
c1700-o3y-mz
4 MB
24 MB
IP/FW/Voice Plus IPSec 56 (DES) ADSL
c1700-o3sv3y7-mz
16 MB
48 MB
IP/FW Plus IP Sec 56 (DES) ADSL
c1700-o3sy756i-mz
8 MB
32 MB
IP/Voice/FW/IDS Plus IPSec 56 ADSL
c1700-o3sv3y756i-mz
16 MB
48 MB
IP/IPX
c1700-ny-mz
4MB
24 MB
IP/IPX/FW/IDS Plus ADSL
c1700-no3sy7-mz
8 MB
32 MB
IP/IPX/Voice/FW/IDS Plus ADSL
c1700-no3sv3y7-mz
16 MB
48 MB
IP Plus IPSec 3DES ADSL
c1700-k2sy7-mz
8 MB
32 MB
IP/Voice Plus IPSec 3DES ADSL
c1700-k2sv3y7-mz
16 MB
48 MB
IP/FW Plus IPSec 3DES ADSL
c1700-k2o3sy7-mz
8 MB
32 MB
IP/FW/Voice Plus IPSec 3DES ADSL
c1700-k2o3sv3y7-mz
16 MB
48 MB
IP/IPX/AT/IBM
c1700-bnr2y-mz
8 MB
24 MB
IP/IPX/AT/IBM Plus ADSL
c1700-bnr2sy7-mz
16 MB
48 MB
IP/IPX/AT/IBM/FW Plus IPSec 56 (DES) ADSL
c1700-bno3r2sy756i-mz
16 MB
48 MB
IP Feature Sets
IP/IPX/AT/IBM/FW/Voice Plus IPSec 56 (DES) ADSL
c1700-bno3r2sv3y756i-mz
16 MB
48 MB
IP/IPX/AT IBM/FW Plus IPSec 3DES ADSL
c1700-bk2no3r2sy7-mz
16 MB
48 MB
IP/IPX/AT/IBM/FW/Voice Plus IPSec 3DES ADSL
c1700-bk2no3r2sv3y7-mz
16 MB
48 MB
1 Flash Memory recommendations are for the Cisco 1750 only. The Cisco 1751 has 16 MB and the 1751-V has 32 MB of on-board Flash Memory, which are not upgradeable.
2 For the Cisco 1751 router, the recommended memory for all Release 12.1(5)YB5 voice images is: 16 MB Flash and 48 MB DRAM.
Hardware Supported
Cisco IOS Release 12.1(5)YB5 supports the following Cisco 1700 series routers:
•
•
•
For detailed descriptions of the new hardware features, see the documents listed in the "Platform-Specific Documents" section.
Cisco 1750
The voice-and-data capable Cisco 1750 router provides global Internet and company intranet access and includes the following:
•
•
•
•
The Cisco 1750 router has the following hardware components:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
The Cisco 1750 router supports any combination of one or two of the following WICs, which are shared with the Cisco 1600, 1720, 2600, and 3600 routers:
•
•
•
•
•
•
•
•
•
The Cisco 1750 router supports any combination of one or two of the following voice interface cards, which are shared with the Cisco 2600 and 3600 routers:
•
•
•
•
•
Cisco 1751 and 1751-V
The voice-and-data capable Cisco 1751 and 1751-V routers provide global Internet and company intranet access and includes the following:
•
•
•
•
The Cisco 1751 and 1751-V routers have the following hardware components:
•
•
•
•
•
•
•
•
•
•
•
•
•
–
–
•
–
–
•
The Cisco 1751 and 1751-V routers support any combination of one or two of the following WICs, which are shared with the Cisco 1600, 1720, 1750, 2600, and 3600 routers:
•
•
•
•
•
•
•
•
•
The Cisco 1751 and 1751-V routers support any combination of one, two or three of the following VICs, which are shared with the Cisco 2600 and 3600 routers:
•
•
•
•
•
•
Determining Your Software Release
To determine the version of Cisco IOS software running on your Cisco 1700 series router, log in to the platform, and enter the show version EXEC command:
router> show versionCisco Internetwork Operating System SoftwareIOS (tm)12.1 XTSoftware (c1700-y-mz), Version 12.1(5)YB5, RELEASE SOFTWAREUpgrading to a New Software Release
For general information about upgrading to a new software release, see
Technical Support for 1700 Series Routers.Feature Set Tables
The Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features. Release 12.1(5)YB5 supports the same feature sets as Releases 12.1 and 12.1 T, but Release 12.1(5)YB5 include new features supported by the Cisco 1700 series routers.
Caution
Table 2 through Table 5 list the features and feature sets supported by the Cisco 1700 series routers in Cisco IOS Release 12.1(5)YB5. The tables use the following conventions:
•
•
•
Note
New and Changed Information
The following sections list the new hardware and software features supported by the Cisco 1700 routers for Release 12.1(5)YB5.
New Hardware Features Supported in Release 12.1(5)YB1
The following new hardware feature is supported by the Cisco 1751 Routers for Cisco IOS Release 12.1(5)YB1:
Two-Port ISDN VIC
The VIC-2BRI-NT/TE VIC is a two-port ISDN VIC for the Cisco 1751 routers. It provides network- and terminal-side basic rate interface (BRI) ISDN voice capability, using IP or Frame Relay as a transport mechanism for both voice and fax.
For configuration instructions, refer to the document Configuring the Voice Interface Card for the Cisco 1751 Router.
New Software Features in Release 12.1(5)YB1
Cisco IOS Release 12.1(5)YB1 supports these new software features for the Cisco 1700 series routers.
Quality-of-Service Device Manager
The QoS Device Manager (QDM) feature provides device-level configuration and real-time monitoring of IP-based QoS functionality within a Cisco router. QDM is stored in Flash Memory and can be run from a workstation as a Java applet in a web browser when the browser is connected to the router's embedded web server.
To install or reinstall QDM, refer to the Release and Installation Notes for Cisco Quality of Service Device Manager 2.0.
On Cisco.com:
Technical Documents: Documentation Home Page: Network Management: Quality of Service Device Manager
On the Documentation CD-ROM:
Cisco Product Documentation: Network Management: Quality of Service Device Manager
New Software Features in Release 12.1(5)YB
Cisco IOS Release 12.1(5)YB supports these new software features for the Cisco 1700 series routers.
Quality of Service Voice Features for the Cisco 1750 and Cisco 1751 Platforms
These features are supported by the Cisco 1750 and Cisco 1751 routers.
Cisco H.323 Version 2 Phase 2
Cisco H.323 Version 2 Phase 2 enhances the Cisco Gateway/Gatekeeper functionality with the following features:
•
•
•
•
•
•
•
•
•
•
Network-Based Application Recognition
The Network-based Application Recognition (NBAR) feature provides IP packet classification for a wide variety of applications, including web-based and other difficult-to-classify protocols. When an application is recognized and classified by NBAR, a network can invoke services for that specific application. NBAR ensures that network bandwidth is used efficiently by working with Quality-of-service (QoS) features to provide bandwidth guarantees and limits, traffic shaping, and packet marking. Among the classification features within NBAR are the following:
•
•
•
•
•
Important Notes
The following sections contain important notes that can apply to the Cisco 1700 series routers.
Cisco Express Forwarding
When installed in a Cisco 1700 series router, the Cisco Virtual Private Network (VPN) module does not support Cisco express forwarding (CEF).
Fan Operation in Cisco 1700 Series Routers
The fans in Cisco 1700 series routers stay off until thermally activated.
Flash Defaults to Flash:1 on Multipartition Flash
When using a multipartition Flash card, the various Flash partitions are referred to as flash:1:, flash:2:, etc. If you specify only flash in a multipartition Flash, the parser assumes flash:1:. For example, if you enter show flash all, the parser defaults to show flash:1: all, and only the Flash information for the first partition appears. To see information for all Flash partitions, enter show flash ?. This lists all of the valid partitions. Then enter show flash:xx: all on each valid partition.
Peak Cell Rate and Sustainable Cell Rate Values
On Cisco 1700 routers, specify the Peak Cell Rate (PCR) and Sustainable Cell Rate (SCR) as multiples of 32 Kbps. Other rates are treated as the next lower value of a multiple of 32. For example, an entered PCR value of 150 is considered 128.
Using the boot flash Command
Booting a Cisco 1700 series router with the commands boot flash or boot system flash results in unpredictable behavior. To work around this problem, be sure to enter a colon (:) following both commands (for example, boot flash: or boot system flash:).
Caveats
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious of these three levels. All caveats in Cisco IOS Release 12.1 and Cisco IOS Release 12.1 T are also in Cisco IOS Release 12.1(5)YB5.
For information on caveats in Cisco IOS Release 12.1, see Caveats for Cisco IOS Release 12.1. For information on caveats in Cisco IOS Release 12.1 T, see Caveats for Cisco IOS Release 12.1 T, which lists severity 1 and 2 caveats and is on Cisco.com and the Documentation CD-ROM.
Note
Resolved Caveats - Release 12.1(5)YB5
This section describes unexpected behavior that is fixed in Release 12.1(5)YB5.
Management
CSCdw65903
An error can occur with management protocol processing. Please use the following URL for further information:
http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903
Caveats Resolved in Release 12.1(5)YB4
This section describes possibly unexpected behavior by software Release 12.1(5)YB4.
CSCdt36204
Telnet not working through the tunnel using the VPN Module on 1700.
CSCdt03449
ISDN BRI callout results in VOICE ERROR when ALERTING is received.
CSCdt41384
Router Crash at CCBNET3_add_bchan.
CSCdu12757
1750 crashes after configuring service-policy under ATM interface.
CSCds92106
Router hang after repeatedly power cycle.
CSCdu37345
AAA commands are not active for 811/813.
CSCdt57231
SSH SSH_MSG_IGNORE messages for terminal echo tests.
CSCdt93866
Unchecked limits in NTP.
CSCdt93862
Access level issue while using Web interface.
CSCdt46181
Redzone corruption in pptp_tcp_readf().
CSCdu04329
if_dslsar_rcv.c:possible deferencing NULL pointer.
CSCdt92629
Incorrect txbuffers calculation in if_dslsar_tx.c.
CSCdt78390
ADSL Phy retrains on an LOM defect condition.
CSCdt41633
Autoinstall not working.
CSCds59167
Transmit error seen while doing a sh run/version or write mem
CSCds90931
With 2 UBR and 1 VBR PVCs, reset ATM int, UBR PVC unable to transmit.
CSCdu38421
The 827 router crashes when unconfiguring the ATM/Dialer interface.
CSCdt67817
Not passing data well after change to higher profile from dslam side.
CSCdt11503
IOS crashes when large OID ( >256 fields ) is received.
CSCds56041
Chassis cardTable not populating.
CSCdt85979
PQUICC-1-TOOBIG:PQUICC(0/1), packet too big with WIC-1ASDL.
CSCds85371
Adding new crypto map instance causes all clear traffic to stop.
CSCds37028
Low performance-on GRE+IPSec /w HW enc card compared to IPSec direct.
CSCdu43931
sv3y image doesn't boot with 32MB DRAM and default 25% iomem config.
CSCdt96253
CRC-32 compensation vulnerability.
CSCds69577
Connectivity to some WEB sites is lost when router terminates PPPoE.
CSCdt96253
CRC-32 compensation vulnerability.
CSCdt11503
IOS crashes when large OID ( >256 fields ) is received.
CSCdt03962
ATM interface takes long time to get up.
CSCds69577
Connectivity to some WEB sites is lost when router terminates PPPoE.
CSCdt73791
No IPSEC traffic if PAT/NAT public addr are included in crypto ACLs.
Caveats for Release 12.1(5)YB3
This section describes possibly unexpected behavior by software releases prior to Release 12.1(5)YB3 that have been resolved in Release 12.1(5)YB3 and above as well as possibly unexpected behavior that might occur in Release 12.1(5)YB3.
Resolved Caveats for Release 12.1(5)YB3
This section describes possibly unexpected behavior by software releases prior to Release 12.1(5)YB3 that have been resolved in Release 12.1(5)YB3 and above.
CSCds92106
A Cisco router might halt after repeated power cycling due to the TI DSP booting up incorrectly under some conditions. This problem is fixed in Cisco IOS Software Release 12.1(5)YB3.
CSCdt77246
When a router is configured for PPPoE and IP NAT, and an incoming packet does not contain an MSS field or its TCP option field is not terminated by 0, the router might stop routing packets.
CSCdu19022
A router might unexpectedly reset if you remove the IP address from an interface while the interface is still attached to the encryption map. This problem is fixed in Cisco IOS Software Release 12.1(5)YB3.
Unresolved Caveats for Release 12.1(5)YB3
This section describes possibly unexpected behavior by Release 12.1(5)YB3.
CSCdu21252
If you shut down an ATM interface in a Cisco router that is configured with VPDN enabled for the PPPoE client, the router might unexpectedly reset.
Caveats for Release 12.1(5)YB1
This section describes possibly unexpected behavior by Release 12.1(5)YB1.
CSCds26729
With ip rtp header-compression configured on a Cisco router over Multilink PPP, with CEF or Fast switching enabled, RTP header compression does not occur. This occurs only with IOS versions 12.1(4) or later, on all Multilink PPP connections. The only workaround is to turn off CEF using no ip cef in the global configuration and no route cache on both the interface and the Virtual Template.
CSCds29702
When a phone on an FXS port is picked up during a ring cycle for a call on an FXS-FXO connection trunk, there might be background ring noise that never stops. This noise may begin immediately, or after a slight delay. If the phone is put on-hook, the ring cycle resumes and never stops. Another problem is that there might be no voice connection established, and if the phone is then put on-hook and off-hook, there is no dial tone. All of these problems are fixed by entering the commands shut and no shut on the FXS port.
To work around these problems, configure the voice port to use connection plar instead of connection trunk.
CSCds88737
E&M trunk calls might not be placed because E&M delay-dial might not interoperate with a Lucent PBX. To work around this problem, you can use wink-start or immediate-start signaling on the topology.
CSCds90877
Spurious memory accesses might occur during stress tests. The problem is seen only during stress tests of long duration. It does not affect functionality.
CSCdt41384
If the router is configured for VoIP with the maximum number of calls (8) in progress, a simultaneous hang-up of all eight phones at the call destinations causes an intermittent unexpected reset of the router.
CSCdt63586
On the Cisco 1751 routers, the Virtual LAN (VLAN) feature is configurable for the 10BaseT Ethernet WIC even though this WIC (on its 10BaseT Ethernet interface) does not support VLAN.
CSCdt86998
With a VPN module and a FastEthernet or 10BaseT Ethernet interface, if outbound traffic flow is greater than 524 packets per second and packet size is greater than 1460 bytes, the router reloads or halts (requiring a power cycle to reset it).
For a workaround, if the rate of encrypted outbound traffic is expected to reach 6 Mbps on the FastEthernet or 10BaseT Ethernet interface, disable the VPN module (switch to software encryption). This reduces the encryption throughput and avoids causing the router to reload or halt.
CSCdu10353
A VPN module may not be used with PPPoE on Ethernet or FastEthernet interfaces. The workaround is either not to configure PPPoE or to disable the VPN Module if PPPoE must be used.
CSCdu11589
There is a problem when the router connects an FTP server to an FTP client, with the server on a FastEthernet interface and the client on a 10BaseT Ethernet interface. When the Ethernet interface is configured in full-duplex mode, the download speed (from server to client) slows to about one-third the upload speed (from client to server). The workaround is to configure the 10BaseT Ethernet interface in half-duplex mode.
CSCdu11668
When the 10BaseT-WIC (WIC-1ENET) is in full-duplex mode, it fails to ftp files. The copy tftp flash command fails with a "timeout" message. The workaround is to configure the Ethernet interface for half-duplex operation.
CSCdu20199
PPPoE does not work on FastEthernet ports of Cisco 1751 routers. The workaround is to configure PPPoE for use on 10BaseT (WIC-1ENET) ports and use FastEthernet ports for LAN connections.
CSCdu17566
When a phone attached to a PBX calls a phone attached to the router over VoIP using the g729ar8 codec, poor voice quality is observed. The workaround is to use any of the other supported codecs.
CSCdu17621
When a phone attached to a PBX calls a phone attached to the router over VoIP using the g729ar8 codec, and the phone on the router is not answered, the phone on the router continues to ring after the calling phone has terminated the call. The workaround is to use any of the other supported codecs.
Related Documentation
The following sections describe the documentation available for the Cisco 1700 series routers. Typically, these documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.
Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on Cisco.com and the Documentation CD-ROM.
Use these release notes with the documents listed in the following sections:
•
Release-Specific Documents
The following documents are specific to Release 12.1. They are on Cisco.com and the Documentation CD-ROM.
•
On Cisco.com:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes
•
Technical Documents: Product Bulletins
•
As a supplement to the caveats listed in the "Caveats" section section in these release notes, see the Caveats for Cisco IOS Release 12.1 and Caveats for Cisco IOS Release 12.1 T documents, which contain caveats applicable to all platforms for all maintenance releases of IOS Releases 12.1 and 12.1 T.
On Cisco.com:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
Note
Platform-Specific Documents
Cisco 1750
These documents are available for the Cisco 1750 router on Cisco.com and the Documentation CD-ROM:
•
•
•
•
•
•
•
On Cisco.com:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 1750 Router
On the Documentation CD-ROM:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1750 Router
Cisco 1751
These documents are available for the Cisco 1751 routers on Cisco.com and the Documentation CD-ROM:
•
•
•
•
•
On Cisco.com:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 1751 Router
On the Documentation CD-ROM:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1751 Router
Feature Modules
Feature modules describe new features supported by Release 12.1(5)YB5 and above are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature module information is incorporated in the next printing of the Cisco IOS documentation set.
On Cisco.com:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation: New Features in 12.1-Based Limited Lifetime Releases: New Features in 12.1X Releases
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation: New Features in 12.1-Based Limited Lifetime Releases: New Features in 12.1X Releases
Feature Navigator
Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image. Feature Navigator is available 24 hours a day, 7 days a week.
To access Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at cdbadmin@cisco.com. If you do not have an account on Cisco.com, go to http://www.cisco.com/register and follow the directions to set up an account.
To use Feature Navigator, you must have a JavaScript-enabled web browser such as Netscape 3.0 or later, or Internet Explorer 4.0 or later. Internet Explorer 4.0 always has JavaScript enabled. To enable JavaScript for Netscape 3.x or Netscape 4.x, follow the instructions provided with the web browser. For JavaScript support and enabling instructions for other browsers, check with the browser vendor.
Feature Navigator is updated when major Cisco IOS software releases and technology releases occur. You can access Feature Navigator at the following URL:
http://www.cisco.com/go/fn
Cisco IOS Software Documentation Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents that are shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered printed versions.
Documentation Modules
Each module in the Cisco IOS documentation set consists of two types of books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
The Cisco IOS software documentation set is available on Cisco.com and on the Documentation CD-ROM.
On Cisco.com:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Release 12.1 Documentation Set
Table 6 describes the contents of the Cisco IOS Release 12.1 software documentation set, which is available in both electronic and printed form.
Note
On Cisco.com:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1
Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following sites:
•
•
•
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and might be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
•
http://www.cisco.com/cgi-bin/order/order_root.pl
•
http://www.cisco.com/go/subscription
•
Documentation Feedback
If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:
Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following website:
http://www.cisco.com
Technical Assistance Center
The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.
Contacting TAC by Using the Cisco TAC Website
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:
http://www.cisco.com/tac
P3 and P4 level problems are defined as follows:
•
•
In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.
To register for Cisco.com, go to the following website:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following website:
http://www.cisco.com/tac/caseopen
Contacting TAC by Telephone
If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
•
•
